Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Ulva intestinalis
Gutweed
As recorded: Ulva intestinalis L.
Plantae › Chlorophyta › Ulvophyceae › Ulvales › Ulvaceae
- Collected by
- Ball, F.
- Collector number
- I.A. 17262
- Date
- July 14, 1977
- Island
- Laysan
- Region
- Hawaii, United States
- Identified by
- (Nom. rev.) Tsuda, R.T.
- Record type
- Preserved specimen
Collected the same day
On July 14, 1977, Ball, F. also collected 14 other specimens.
Ulva intestinalis observed alive in Hawaiʻi
This specimen was collected in 1977. Since 2000, iNaturalist observers have recorded 6 research-grade sightings in the wild, most recently on 2026-05-31.

2026-05-31
Papa‘iloa Beach, Haleiwa, HI, US
(c) Stefan Cranston, some rights reserved (CC BY-NC)

2026-04-24
Kulamanu Pl, Honolulu, HI, US
(c) jordan loftin, some rights reserved (CC BY-NC)

2024-11-02
Oneʻula Beach, Ewa Beach, HI, US
(c) iwilkins, some rights reserved (CC BY-NC)

2023-12-04
Hawaii County, US-HI, US
(c) tiarrek, some rights reserved (CC BY-NC)

2022-05-15
One Ali'i, Moloka'i, Hawai'i, USA
(c) sea-kangaroo, some rights reserved (CC BY-NC-ND)

2018-01-07
Kihei, HI 96753, Kihei, HI, US
(c) John Starmer, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Ulva intestinalis. BISH 701264. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956280999. Accessed via explore.bishopmuseum.org/specimens/bish/701264.
Record sources
- GBIF occurrence 5956280999 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
